Building internal thermal energy circulation utilizing system integrated energy-saving device

Abstract

The invention discloses an integration energy conservation installment of building internal heat energy circulation use system, including frequency conversion velocity modulation intelligence control device, central air-conditioning system equipment, disc heat interchanger and heat pump unit, among: after parallel connected with the one side feed-water end of the heat pump unit (12), the disc heat interchanger (26) one side feed-water end through the one feed-water motorized valve (15) of the heat pump unit (12) connects the cooling water discharging piping(38), after parallel connected with the one side water exit end of the heat pump unit (12), the disc heat interchanger (26) one side water exit end through the one water exit motorized valve (13) of the heat pump unit (12) connects the cooling water feed-water piping(37); the input end of the frequency conversion velocity modulation intelligence control device connects the related sensor of the air conditioning main engine(2), the output end connects the related working pump and the stand-by pump of the air conditioning main engine(2). The invention can raises the lower order heat energy of building internal cooling water, center water, fire control water to the higher order heat energy, shifts and uses this kind of heat energy, directly prepared the hygienic hot water which is used for the user.

Description

Technical field [0001] The invention relates to an energy-saving device, in particular to an integrated energy-saving device of a thermal energy recycling system in a building. Background technique [0002] Central air-conditioning systems are commonly used in modern buildings. Most central air-conditioning systems have not taken technical measures to solve the problem of energy saving and consumption reduction. As long as the air-conditioning host is started, the water pumps and fans are running at 50Hz and cannot follow the changes in air-conditioning load. The running frequency of the water pump and the fan cannot be changed, which wastes a lot of electric energy, aggravates the wear of the water pump and the fan, generates strong noise, and disturbs the surrounding environment. When the air-conditioning host is operating in the cooling state, a large amount of heat in the air-conditioning area and the air-conditioning host is taken out by the cooling water, and the cooling wa...

AI Technical Summary

Problems solved by technology

[0002] Central air-conditioning systems are commonly used in modern buildings. Most central air-conditioning systems have not taken technical measures to solve the problem of energy saving and consumption reduction. As long as the air-conditioning host is started, the water pump and fan will run at 50Hz, which cannot follow the change of air-conditioning load. The operating frequency of the water pump and fan cannot be changed, which wastes a lot of electric energy, increases the wear of the water pump and fan, produces strong noise, and disturbs the surrounding environment

When the air conditioner is running in the cooling state, a large amount of heat in the air conditioning area and the air conditioner is taken out by the cooling water, and the cooling water with an outlet temperature of 37°C is blown by the cooling tower fan to cool down, and the heat is discharged by evaporating a part of the cooling water. into the atmosphere to form cooling water with an inlet temperature of 32°C. This disposal method not only consumes electricity and water resources, but also wastes heat energy that can be used. ecological environment

[0003] At present, many central air-conditioning systems use absorption cold and warm water units. Although they have the functions of cooling, heating and producing sanitary hot water, the cost of producing sanitary hot water is too high, and a large amount of gas is consumed, which cannot be operated economically.

At the same time, most of the sanitary hot water necessary for urban residents is produced by heating tap water with fuel oil, gas, etc. Combustion heating consumes primary energy and emits a large amount of CO 2 and other greenhouse gases

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